Setting/roomgridoverride
To set overrides click in the field of the first date.
BLACKOUT will close the room so it is not available for booking
NO CHECK IN - guests can not check in on this day but guests checking in before can stay on this day
NO CHECK OUT - guests can not check out on this day but guests checking in before this date can stay on this day
NO CHECK IN AND NO CHECK OUT - guests can not check in or check out on this day but guests checking in before can stay on this day
EXCEPTION will apply the booking rule for the "Exceptional Period" set in SETTINGS -> PROPERTIES -> BOOKING RULES
NONE - the booking strategy is as defined for the property